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This stainless steel bar, designed for durability, fits perfectly between vacuum arches and canopy structures, ensuring a rust-free, long-lasting performance outdoors. Measuring 116" in length with a 1" diameter, it features flat ends with 5/16" mounting holes for easy installation. Used on each vacuum stanchion, it securely holds "Vacuum" or "Free Vacuum" signs, making it an essential addition for your car wash setup.